The rich complexity of the concepts of masculinity and femininity has been reflected in personality measures in at least two different ways: by employing a variety of subscales with comparatively homogeneous items or by using a single scale with comparatively heterogeneous items. The Personal Attributes Questionnaire (PAQ) was the subject of an intensive study designed to elaborate the construct interpretation of the six PAQ scales. A data base including a large battery of well-known self-report personality inventories and a systematic sample of personality ratings made by multiple judges was established for a mixed-sex sample of 116 college sophomores. Separate analyses of the data by sex indicated a strong intellectuality component in high M- scale scores in females, which refined the meaning of the PAQ scales. These results, in conjunction with outcomes congruent with previous PAQ studies, support the notion that the PAQ provides differentiated measurement of personality traits within the broad domain of masculinity-femininity. (Author/JAC)